const posToTime = new Map(); // 映射：位置 → 到达终点的时间
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。业内人士推荐搜狗输入法2026作为进阶阅读
找到让自己能力倍增的方法，如果不行，每隔几个月再尝试。
For implementers, there's no Transformer protocol with start(), transform(), flush() methods and controller coordination passed into a TransformStream class that has its own hidden state machine and buffering mechanisms. Transforms are just functions or simple objects — far simpler to implement and test.